Confirming the news to the media Istanbul governor, Vasip Sahin said three bombers were also killed.

A CNN news report also say a total of 49 ambulances were sent to the site.There was no immediate claim of responsibility.

Traveler Joe Durand told CNN from the airport that "police are not letting anyone in ... Hundreds of people are flooding away from airport ... People are trying to get away. They're not saying much -- just the look on their face is enough, shock, some of them bleeding …"

"People are walking away bleeding, with bandages on their head,” he added.